Electromotor and driving axle with a built-in electromotor

Details Electromotor and driving axle with a built-in electromotor Electromotor and driving axle with a built-in electromotor

H - Electricity

02

K

H02K 11/00 (2006.01) H02K 5/173 (2006.01)

Patent

CA 2413257

The invention relates to an electromotor comprising a housing (5) which consists of a ferromagnetic material and a rotationally driven shaft (13) which is located in said housing (5). Said housing comprises at least one bearing shield (25), with a bearing (31) for the shaft (13). The bearing (31) has sensor means (33) for determining the state of rotation of the shaft (13). According to the invention, the bearing (31) is accommodated in a screening bushing (35) which is located in a bearing receiving opening (29) of the bearing shield (25) and which consists of a non-ferromagnetic material. A cover bushing (37) consisting of ferromagnetic material which is connected to the bearing shield (25) and which surrounds the shaft (13) is provided, and surrounds the bearing (31) and the screening bushing (35) on the inside of the housing.

Moteur électrique qui comporte un carter (5) constitué d'une matière ferromagnétique et un arbre (13) à entraînement rotatif situé dans le carter (5). Le carter comprend au moins un flasque (25) à palier (31) pour l'arbre (13). Le palier (31) possède des capteurs (33) destinés à détecter l'état de rotation de l'arbre (13). Selon la présente invention, le palier (31) est logé dans une douille de blindage (35) constituée d'une matière non ferromagnétique placée de manière fixe dans l'ouverture (29) de réception du palier du flasque (25). Une douille de couverture constituée d'une matière ferromagnétique (37), qui entoure l'arbre (13) et est reliée au flasque (25), entoure côté intérieur du carter le palier (31) et la douille de blindage (35).

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